122343402143551 has 2 divisors, whose sum is σ = 122343402143552. Its totient is φ = 122343402143550.

The previous prime is 122343402143407. The next prime is 122343402143659. The reversal of 122343402143551 is 155341204343221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122343402143551 - 2²⁵ = 122343368589119 is a prime.

It is a super-2 number, since 2×122343402143551² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122343402143251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61171701071775 + 61171701071776.

It is an arithmetic number, because the mean of its divisors is an integer number (61171701071776).

Almost surely, 2^{122343402143551} is an apocalyptic number.

122343402143551 is a deficient number, since it is larger than the sum of its proper divisors (1).

122343402143551 is an equidigital number, since it uses as much as digits as its factorization.

122343402143551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 122343402143551 its reverse (155341204343221), we get a palindrome (277684606486772).

The spelling of 122343402143551 in words is "one hundred twenty-two trillion, three hundred forty-three billion, four hundred two million, one hundred forty-three thousand, five hundred fifty-one".